Fig. 2

a有限公司ncentration of total soluble amino acids in the root,bconcentration of total soluble amino acids in the leaves,cconcentration of total soluble proteins in the root,dconcentration of total soluble proteins in the leaves,eProline concentration in the root,fproline concentration in the leaves in young plants ofV. surinamensisexposed to five cadmium concentrations (0, 15, 30, 45, and 60 mg). Different letters for cadmium concentrations in solution indicate significant differences in the Tukey’s test (P < 0.05). Mean ± SD,n = 7